ML20236X597
| ML20236X597 | |
| Person / Time | |
|---|---|
| Site: | Oregon State University |
| Issue date: | 07/27/1998 |
| From: | Oregon State University, CORVALLIS, OR |
| To: | |
| Shared Package | |
| ML20236X596 | List: |
| References | |
| NUDOCS 9808100127 | |
| Download: ML20236X597 (1) | |
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Basis. The minimum height of 14 feet of water above the core guarantees that !
there is sufficient water for effective cooling of the fuel and that the radiation levels at the top of the reactor are within acceptable levels (SAR). The bulk water temperature lirait is necessary, according to the reactor manufacturer, to ensure that the aluminum reactor tank maintains its integrity and is not degrad- i ed. I 3.8 LIMITATIONS ON EXPERIMENTS Acolicability. This specification applies to experiments installed in the reactor and its experimental facilities.
.Obiective. The objective is to prevent damage to the reactor or excessive release of radioactive materials in the event of an experiment failure.
Specifications. The reactor shall not be operated unless the following condi-tions governing experiments exist:
- a. Non-secured experiments shall have reactivity worths less than i dollar.
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- b. The reactivity worth of any single experiment will be less than 2.55 dollars.
- c. Total experiment worth of all experiments will not exceed 3.00 dollars.
- d. Explosive materials, such as gunpowder, TNT, nitroglycerin, or PETN, in quantities greater than 25 milligrams shall not be irradiated in the reactor or experimental facilities. Explosive materials in quantities less than 25 1 milligrams may be irradiated provided the pressure produced upon detona- ;
tion of the explosive has been calculated and/or experimentally demon- '
strated to be less than the design pressure of the container. EXCEPTION:
Explosive materials not exceeding 0.014 lbs. equivalent of TNT may be irradiated in the laboratory area adjacent to the end of the OSTR tangen-tial beamport for the purpose of neutron radiography. ,
- e. Where the possibility exists that the failure of an experiment (except fueled experiments) under (1) normal operating conditions of the experi-ment or reactor, (2) credible accident conditions in the reactor, or (3) possible accident conditions in the experiment, could release radioactive gases or aerosols to the reactor bay or the unrestricted area, the quantity and type of material in the experiment shall be limited such that the airboine concentration of radioactivity in the reactor bay and the unre-stricted area averaged over a year will not exceed the applicable regula-l tory concentration limits in 10 CFR 20, assuming 100% of the gases or aerosols escape from the experiment,
- f. In calculations pursuant to e., above, the following assumptions shall be used:
9808100127 980727 PUR ADOCK0500g3 Amendment No.17 P ,
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